Are you a Twitter user? Then congratulations — your everyday, 140-character updates may have won you a place in the Library of Congress. The venerable institution is adding the vast majority of tweets sent since March 2006 to its online archives to save them for posterity. Given Twitter users post around 55 million messages a day, that's a lot of data. Is it a good idea to record every spur-of-the-moment tweet?

It's a worthy snapshot of American culture: Twitter's content might seem trivial, says Jared Keller in The Atlantic, but it provides "important insights into the minds of average Americans." Almost one in five internet users in America use Twitter to share their thoughts. Everything on it, even "feverish anticipation of the newest Justin Bieber album," is evidence of the "constantly metamorphosing character of American culture." That's worth preserving. "Twitter is forever"

Twitter might change because of this: Great, says Karl Bode in Techdirt. Now, the nation's thoughts on "the Twilight films, shampoo choices, or weekend plans" will be preserved for posterity. The Library of Congress thinks Twitter's "everyday chatter" will be useful context for historians of the future, but you have to wonder whether such "permanence" will change the way people use it. Maybe Twitter's "off-the-cuff" style will change now that it's been legitimized."Library of Congress to store your inane twitter chatter for all eternity"